Eu3+掺杂Bi4Ti3O12薄膜铁电性与发光调控及信息编码应用
Ferroelectric and Luminescence Modulation in Eu3+-doped Bi4Ti3O12 Thin Films for Information Encoding Applications
摘要
Abstract
Ferroelectric oxide Bi4Ti3O12(BIT)possesses a unique layered perovskite structure and excellent ferro-electric properties,capable of inducing structural distortions in the crystal lattice under an external electric field.Rare-earth(Re3+)ion doping of BIT has attracted significant attention due to the sensitivity of its luminescence inten-sity to changes in crystal symmetry,implying that the luminescence intensity of Re3+can be modulated by applying an external electric field.However,simultaneously achieving superior luminescence and ferroelectric performance im-poses higher requirements on the doping species and concentration of rare-earth ions,presenting a major challenge in this field.In this study,BIT films with different Eu3+doping concentrations(BIT:xEu)were prepared using the sol-gel method and their ferroelectric and luminescent properties were systematically investigated.The films achieved enhanced ferroelectric performance at low doping concentrations(x≤0.5).Meanwhile,at x=0.3,the photolumi-nescence(PL)intensity of the BIT:xEu films was modulated dynamically and reversibly in real time by applying an external electric field.By manipulating the PL emission,we successfully mapped designed digital encoding electri-cal signals to visible light emission waveforms,achieving information encoding.These findings provide new possibili-ties for applications in optical information storage and optoelectronic synaptic devices.关键词
Bi4Ti3O12/Eu3+掺杂/铁电性/溶胶-凝胶法/数字编码Key words
Bi4TI3O12/Eu3+doping/ferroelectricity/sol-gel method/signal encoding分类
数理科学引用本文复制引用
付建海,李齐清,贾玉萍,龙菲,甘德超,王旺,陈浩然,常钰磊..Eu3+掺杂Bi4Ti3O12薄膜铁电性与发光调控及信息编码应用[J].发光学报,2025,46(7):1292-1300,9.基金项目
国家重点研发计划(2021YFA0715603) （2021YFA0715603）
国家自然科学基金(62075217,62475262,62305329,12404496) （62075217,62475262,62305329,12404496）
吉林省科技厅项目(20230508104RC,20230402039GH,20220201247JC) （20230508104RC,20230402039GH,20220201247JC）
长春市科技局(23GZZ06) （23GZZ06）
中国博士后科学基金(2023M733432,2023M741350)Supported by National Key Research and Development Program of China(2021YFA0715603) （2023M733432,2023M741350）
National Natural Science Foun-dation of China(62075217,62475262,62305329,12404496) （62075217,62475262,62305329,12404496）
Project of Science and Technology Agency,Jilin Province(20230508104RC,20230402039GH,20220201247JC) （20230508104RC,20230402039GH,20220201247JC）
Changchun Science and Technology Bureau(23GZZ06) （23GZZ06）
China Post-doctoral Science Foundation(2023M733432,2023M741350) （2023M733432,2023M741350）
